Metadata-Version: 2.1
Name: pygrin
Version: 0.4.0
Summary: Gradient Index (GRIN) Lens Calculations
Home-page: https://github.com/scottprahl/pygrin.git
Author: Scott Prahl
Author-email: scott.prahl@oit.edu
License: MIT
Description: pygrin
        ======
        
        A basic collection of routines to ray trace through graded
        index (GRIN) lenses with a parabolic radial profile.
        
        Usage
        -----
        
        Example Light paths in a 0.25 pitch GRIN lens from an ancient Melles Griot Catalog::
        
            import pygrin as grin
            n = 1.608 
            gradient = 0.339 
            length = 5.37
            diameter = 1.8
            
            pitch = grin.period(gradient, length)
            ffl = grin.FFL(n,pitch,length)
            efl = grin.EFL(n,pitch,length)
            na = grin.NA(n,pitch,length,diameter)
        
            angle = grin.max_angle(n,pitch,length,diameter)
            print('expected pitch = 0.29,            calculated %.2f' % pitch)
            print('expected FFL = 0.46 mm,           calculated %.2f' % ffl)
            print('expected NA = 0.46,               calculated %.2f' % na)
            print('expected full accept angle = 55°, calculated %.0f°' % (2*angle*180/np.pi))
            print('working distance = %.2f mm'%(efl-ffl))
        
        Produces::
        
            expected pitch = 0.29,            calculated 0.29
            expected FFL = 0.46,              calculated 0.47
            expected NA = 0.46,               calculated 0.46
            expected full accept angle = 55°, calculated 55°
            working distance = 1.43 mm
        
        But the real utility of this module is creating plots that show the path of rays through
        a GRIN lens.   For examples, see <https://pygrin.readthedocs.io>
        
        Installation
        ------------
        
        Source code is available at <https://github.com/scottprahl/pygrin> or the module
        can be installed using `pip`::
        
            pip install pygrin
        
        License
        -------
        pygrin is licensed under the terms of the MIT license.
Keywords: endoscope,pitch,SELFOC,Graded Index
Platform: UNKNOWN
Classifier: Development Status :: 4 - Beta
Classifier: License :: OSI Approved :: MIT License
Classifier: Intended Audience :: Science/Research
Classifier: Topic :: Scientific/Engineering :: Physics
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3.4
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Requires-Python: >=3.4
Description-Content-Type: text/x-rst
